<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        body {
            background-color: #333;
        }
        
        .map {
            position: relative;
            margin: 100px auto;
            width: 750px;
            height: 700px;
            background: url(map.png) no-repeat;
        }
        
        .box {
            position: absolute;
            top: 229px;
            right: 200px;
            width: 8px;
            height: 8px;
            background-color: #09f;
            border-radius: 50%;
        }
        
        .box2 {
            position: absolute;
            top: 530px;
            right: 190px;
            width: 8px;
            height: 8px;
            background-color: #09f;
            border-radius: 50%;
        }
        
        .box3 {
            position: absolute;
            top: 500px;
            right: 85px;
            width: 8px;
            height: 8px;
            background-color: #09f;
            border-radius: 50%;
        }
        
        .map div[class^="pulse"] {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 8px;
            height: 8px;
            box-shadow: 0 0 12px #009dfd;
            border-radius: 50%;
            animation: no 1.2s linear infinite;
        }
        
        @keyframes no {
            70% {
                width: 40px;
                height: 40px;
                opacity: 1;
            }
            100% {
                width: 70px;
                height: 70px;
                opacity: 0;
            }
        }
        
        .map [class^="box"] .pulse2 {
            animation-delay: 0.5s;
        }
        
        .map [class^="box"] .pulse3 {
            animation-delay: 0.8s;
        }
    </style>
</head>

<body>
    <div class="map">
        <div class="box">
            <div class="pulse1"></div>
            <div class="pulse2"></div>
            <div class="pulse3"></div>
        </div>
        <div class="box2">
            <div class="pulse1"></div>
            <div class="pulse2"></div>
            <div class="pulse3"></div>
        </div>
        <div class="box3">
            <div class="pulse1"></div>
            <div class="pulse2"></div>
            <div class="pulse3"></div>
        </div>
    </div>
</body>

</html>